NL77179C - - Google Patents
Info
- Publication number
- NL77179C NL77179C NL77179DA NL77179C NL 77179 C NL77179 C NL 77179C NL 77179D A NL77179D A NL 77179DA NL 77179 C NL77179 C NL 77179C
- Authority
- NL
- Netherlands
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G9/00—Working screws, bolt heads, or nuts in conjunction with thread cutting, e.g. slotting screw heads or shanks, removing burrs from screw heads or shanks; Finishing, e.g. polishing, any screw-thread
- B23G9/001—Working screws
- B23G9/002—Slotting screw heads or shanks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
- F16B25/0078—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw with a shaft of non-circular cross-section or other special geometric features of the shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
- F16B35/044—Specially-shaped ends
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Clamps And Clips (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US106232A US2590597A (en) | 1949-07-22 | 1949-07-22 | Method of slotting the shanks of screw fasteners |
| US157906A US2624228A (en) | 1949-07-22 | 1950-04-25 | Fastener with slotted pilot portion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL77179C true NL77179C (es) |
Family
ID=26803441
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL686804200A NL149710B (nl) | 1949-07-22 | Verfafmeetinrichting. | |
| NL77179D NL77179C (es) | 1949-07-22 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL686804200A NL149710B (nl) | 1949-07-22 | Verfafmeetinrichting. |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2624228A (es) |
| NL (2) | NL77179C (es) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2881652A (en) * | 1955-07-14 | 1959-04-14 | Frank H Swaim | Hollow self-tapping and self-locking screw |
| US5088869A (en) * | 1991-01-24 | 1992-02-18 | Greenslade Joe E | Thread rolling screw |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1909476A (en) * | 1931-11-28 | 1933-05-16 | Shakeproof Lock Washer Co | Self-tapping screw |
| US2156350A (en) * | 1937-04-19 | 1939-05-02 | Illinois Tool Works | Fastener |
| US2292195A (en) * | 1940-07-03 | 1942-08-04 | Continental Screw Company | Fastener |
-
0
- NL NL686804200A patent/NL149710B/xx unknown
- NL NL77179D patent/NL77179C/xx active
-
1950
- 1950-04-25 US US157906A patent/US2624228A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2624228A (en) | 1953-01-06 |
| NL149710B (nl) |